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Statements of Cash Flows (USD $) | 12 Months Ended
--- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012
OPERATING ACTIVITIES |  |  |
Net loss | $ (5,291,869) | $ (7,275,706) | $ (7,839,996)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Stock-based compensation expense | 3,444,480 | 2,791,862 | 2,599,858
Depreciation and amortization | 470,697 | 323,383 | 231,981
Accretion and amortization on debt securities | 401,319 | 182,162 | 261,398
Provision for bad debt | (5,900) | (5,773) | (3,571)
Loss (gain) on sale of property and equipment | 349 | (1,097) |
Changes in assets and liabilities: |  |  |
Accounts receivable | (1,454,823) | (391,543) | 1,862,555
Other assets | (88,007) | (213,653) | (180,367)
Accounts payable | (83,642) | 1,163,959 | 353,043
Accrued payroll and related taxes | (20,574) | 728,522 | 230,956
Deferred revenue | 291,238 | 1,214,572 | 758,855
Other liabilities | (131,939) | 868,251 | (53,476)
Net cash used in operating activities | (2,468,671) | (615,061) | (1,778,764)
INVESTING ACTIVITIES |  |  |
Purchases of investments | (24,642,603) | (4,058,975) | (12,187,523)
Sales and maturities of investments | 11,666,624 | 6,090,734 | 14,635,005
Purchases of property and equipment | (135,452) | (1,497,492) | (339,715)
Sale of property and equipment | 800 | 36,621 |
Net cash (used in) provided by investing activities | (13,110,631) | 570,888 | 2,107,767
FINANCING ACTIVITIES |  |  |
Proceeds from the issuance of common stock, net of issuance costs of $0, $1,245,196 and $0, respectively |  | 16,004,797 |
Proceeds from exercise of warrants and stock options, net | 70,328 | 648,656 | 732,287
Principal payments on capital lease obligations | (18,892) | (16,914) | (14,916)
Net cash provided by financing activities | 51,436 | 16,636,539 | 717,371
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | (15,527,866) | 16,592,366 | 1,046,374
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 23,294,456 | 6,702,090 | 5,655,716
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 7,766,590 | 23,294,456 | 6,702,090
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION |  |  |
Cash paid for interest | 6,115 | 8,093 | 10,397
Cash paid for income taxes | 2,226 | 1,076 | 800
NON-CASH FINANCING AND INVESTING ACTIVITIES |  |  |
Unrealized holding gain (loss) on available for sale investments | (9,648) | 2,454 | 9,239
Cashless exercise of option and warrants | 3 | 125 | 410
Capital lease obligations |  |  | 95,388
Common Stock [Member] |  |  |
NON-CASH FINANCING AND INVESTING ACTIVITIES |  |  |
Cashless settlement of restricted stock units | $ 15 | $ 32 |

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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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